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Circular ... of the Union Observatory

Published: 1912

Total Pages: 436

Circulars

Republic Observatory

Published: 1919

Total Pages: 428

Circulars - South African Astronomical Observatory

South African Astronomical Observatory

Published: 1929

Total Pages: 494

The Observatory

Published: 1923

Total Pages: 1242

Helwan Observatory Bulletins

Ḥulwān (Egypt) al-Marsad

Published: 1923

Total Pages: 374

The Publishers' Circular and Booksellers' Record

Published: 1919

Total Pages: 624

Publications of the Astronomical Observatory of the Warsaw University

Published: 1925

Total Pages: 892

Catalog of Unconfirmed Comets - Volume 2

Gary W. Kronk

Published:

Total Pages: 434

Bulletin

Published: 1923

Total Pages: 246

Publications of the Astronomical Observatory of the Warsaw University

Uniwersytet Warszawski. Obserwatorium Astronomiczne

Published: 1925

Total Pages: 496